diff --git a/tests/unit/introspection.tcl b/tests/unit/introspection.tcl
new file mode 100644
index 000000000000..db21cbd05c21
--- /dev/null
+++ b/tests/unit/introspection.tcl
@@ -0,0 +1,5 @@
+start_server {tags {"introspection"}} {
+    test {CLIENT LIST} {
+        r client list
+    } {*addr=*:* fd=* idle=* flags=N db=9 sub=0 psub=0 qbuf=0 obl=0 oll=0 events=r cmd=client*}
+}